Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells
Energy, Resources and Environmental Technology|Updated:2026-01-06
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Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells
Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells
中国化学工程学报(英文版)2018年26卷第10期 页码:2130-2138
Affiliations:
2 School of Petroleum and Chemical Engineering, State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, Dalian University of Technology,Panjin,China,124221
An imidazolium functionalized poly (ether ether ketone ketone) (PEEKK-DImOH) anion exchange membrane (AEM) readily soluble in certain low-boiling-point solvents (isopropanol) is prepared. The solubility results are consistent with the results of molecular dynamics simulations. By varying the chloromethylation reaction temperature or concentrated sulfuric acid concentration of PEEKK
the degrees of chloromethylation of PEEKK are changed from 54% to 92%
the corresponding PEEKK-DImOH AEMs with the ion exchange capacities (IECs) of 1.14-1.65 mmol·g
-1
. The PEEKK-DImOH 92% AEM shows high hydroxide conductivity (31 mS·cm
-1
)
suitable water uptake (94%) and acceptable swelling ratio (39%) at 60℃. In addition
the PEEKK-DImOH AEMs possess good thermal and alkaline stability. The maximum power density (46.16 mW·cm
-2
) of fuel cell prepared with PEEKK-DImOH 92% AEM as exchange membrane and ionomer is much higher than that with commercial AHA membranes. All the above results indicate that the PEEKK used in this study is a promising AEM matrix material for alkaline fuel cells.
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相关作者
Bo Zhang
Chuang Zhang
MingquanWei
Mirza Nusrat Sweety
Md Abdus Salam
周彩荣
王海峰
石晓华
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